With only 125 Kw @ 5500 RPM developing 245 Nm of Torque at 3500 RPM the Mitsubishi Starion 2 Ltr Turbo was no ball of fire, but ground breaking at the time of release in 1982.

Although it certainly had the engineering and chassis to handle a needed extensive power upgrade. I decided very early in ownership that it would be fairly easy to extract a lot more power cost effectively without upgrading the turbo initially by enhancing all air flow in and out of the motor. I achieved this by modifying all the piping and introducing an efficient Water to Air Inter-cooling system based on two modified motor cycle radiators and washing machine water circulation pump driven from the crankshaft.

Fairly agricultural setup, but engineered for efficient intake manifold air cooling from the factory turbocharger output. The boost was also increased by modification of the wastegate mechanism and the fuel pressure increased under higher boost by the introduction of a variable solenoid. The resulting power increase was what the Starion needed to really exploit the handling characteristics of the race proven chassis and suspension with the LSD.

With some tuning the Starion was able to max out at 240 KPH plus on racetracks with awesome acceleration out of corners heading many V8 competitors on track.